Remote bridge structure monitoring and prewarning method based on Internet of things technology

An Internet of Things technology and bridge structure technology, applied in the field of remote bridge structure monitoring and early warning, can solve problems such as slow collection speed, affecting traffic operation, and inability to achieve real-time monitoring

Inactive Publication Date: 2013-06-12
QUZHOU COLLEGE OF TECH
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AI Technical Summary

Problems solved by technology

[0006] ⑴It can only do regular inspections, and can only determine the health status of the bridge at that time, and cannot guarantee the safe use of the bridge during the effective guarantee period
[0007] ⑵The data transmission is completed by wired cables, the line layout is complicated, the wiring is cumbersome, the installation cost is high, the later cable maintenance consumes a lot of time and energy, and the application has great limitations; the monitoring transmission distance is too far, and the

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  • Remote bridge structure monitoring and prewarning method based on Internet of things technology
  • Remote bridge structure monitoring and prewarning method based on Internet of things technology
  • Remote bridge structure monitoring and prewarning method based on Internet of things technology

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Embodiment Construction

[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0050] refer to figure 1 , a remote bridge structure monitoring and early warning method based on Internet of Things technology, which deduces the working status of the bridge structure in the future from the collected load and response information of each measurement point and realizes the evaluation and early warning, so as to achieve the goal of bridge structure safety assessment Target, the monitoring method includes the following steps:

[0051] 1) Build a bridge model:

[0052] The dynamic balance equation for the bridge is simplified as:

[0053] EI ∂ 4 u ∂ x 4 ...

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Abstract

The invention relates to a remote bridge structure monitoring and prewarning method based on an Internet of things technology. The remote bridge structure monitoring and prewarning method comprises the following steps of: (1) building a bridge model and calculating to obtain the dynamic deflection of a beam; (2) continuously acquiring data of monitored points to obtain a sequence [u] of the dynamic deflection, and carrying out forecast evaluation on the performances of a bridge system by using a specific mode based on a chaotic system, wherein the step (2) comprises the substeps of: (2.1) calculating a maximum Lyapunov index of the sequence [u]; (2.2) calculating the delay time and an optimal embedded dimension; and (2.3) carrying out fitting and contrast on the reconfigured chaotic time sequence to realize health monitoring and prewarning of a bridge structure. The remote bridge structure monitoring and prewarning method is used for analyzing the monitored data and precast evaluation on the future working state of a bridge to realize prewarning.

Description

technical field [0001] The invention relates to a remote bridge structure monitoring and early warning method. Background technique [0002] Bridge construction and maintenance are an important part of a country's infrastructure, and play an important role in national construction and people's lives. The safety and durability of bridge structures are highly valued by people. Issues such as health monitoring, safety assessment, and life prediction have become a new hot technology in the field of bridge engineering and civil public welfare engineering. [0003] Due to the particularity of the bridge engineering structure, once it is completed and put into use, in addition to the continuous degradation and aging of the material itself, it will also be affected by factors such as vehicles, wind, earthquakes, fatigue, overloading, and human factors, resulting in damage to the structure or components. Different degrees of natural damage and sudden damage. In the United States, a...

Claims

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李培江尤婷周晖江鸿廖东进陈育民
Owner QUZHOU COLLEGE OF TECH
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